Use newer alpine

Quay.io security scanner reports issues with the busybox in this version of alpine, use latest
tinkerbell · Nov 24, 2021 · 8da74c0 · 8da74c0
1 parent 187a3c7
commit 8da74c0
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diff --git a/cmd/tink-cli/Dockerfile b/cmd/tink-cli/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.11
+FROM alpine:3.15
 CMD sleep infinity
 
 ARG TARGETARCH

diff --git a/cmd/tink-server/Dockerfile b/cmd/tink-server/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.11
+FROM alpine:3.15
 ENTRYPOINT ["/usr/bin/tink-server"]
 EXPOSE 42113
 EXPOSE 42114

diff --git a/cmd/tink-worker/Dockerfile b/cmd/tink-worker/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.14
+FROM alpine:3.15
 ENTRYPOINT [ "/usr/bin/tink-worker" ]
 
 ARG TARGETARCH